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<h2><span class="refentrytitle">Class xoshiro256d</span></h2>
<p>boost::random::xoshiro256d</p>
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<h2 class="refsynopsisdiv-title">Synopsis</h2>
<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../boost_random/reference.html#doxygen.headers.xoshiro_8hpp" title="Header &lt;boost/random/xoshiro.hpp&gt;">boost/random/xoshiro.hpp</a>&gt;

</span>
<span class="keyword">class</span> <a class="link" href="classboost_1_1random_1_1xoshiro256d.html" title="Class xoshiro256d">xoshiro256d</a> <span class="special">{</span>
<span class="keyword">public</span><span class="special">:</span>

  <span class="comment">// <a class="link" href="classboost_1_1random_1_1xoshiro256d.html#id-1_3_32_5_6_57_1_1_4_2-bb">public member functions</a></span>
  <span class="identifier">std</span><span class="special">::</span><span class="identifier">uint64_t</span> <a class="link" href="classboost_1_1random_1_1xoshiro256d.html#doxygen.headers.classboost_1_1random_1_1xoshiro256d_1af87f80dab76fe2ba62fba98d74263322"><span class="identifier">next_int</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span>
  <span class="identifier">result_type</span> <a class="link" href="classboost_1_1random_1_1xoshiro256d.html#doxygen.headers.classboost_1_1random_1_1xoshiro256d_1a4ac72c89ca55bdf929aa1b7482f463b3"><span class="identifier">next</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span>

  <span class="comment">// <a class="link" href="classboost_1_1random_1_1xoshiro256d.html#id-1_3_32_5_6_57_1_1_4_3-bb">public static functions</a></span>
  <span class="keyword">static</span> <span class="keyword">constexpr</span> <a class="link" href="classboost_1_1random_1_1xoshiro256d.html#doxygen.headers.classboost_1_1random_1_1xoshiro256d_1a12e2c65cbbfdf6668f2631123612f909"><span class="identifier">min</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span>
  <span class="keyword">static</span> <span class="keyword">constexpr</span> <a class="link" href="classboost_1_1random_1_1xoshiro256d.html#doxygen.headers.classboost_1_1random_1_1xoshiro256d_1ac404877bc04f45d40da2d5afbf81dcf2"><span class="identifier">max</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span>
<span class="special">}</span><span class="special">;</span></pre></div>
<div class="refsect1">
<a name="id-1.3.32.5.6.56.6.4"></a><h2>Description</h2>
<p>This is xoshiro256+ 1.0, our best and fastest generator for floating-point numbers. We suggest to use its upper bits for floating-point generation, as it is slightly faster than xoshiro256++/xoshiro256**. It passes all tests we are aware of except for the lowest three bits, which might fail linearity tests (and just those), so if low linear complexity is not considered an issue (as it is usually the case) it can be used to generate 64-bit outputs, too. </p>
<div class="refsect2">
<a name="id-1.3.32.5.6.56.6.4.3"></a><h3>
<a name="id-1_3_32_5_6_57_1_1_4_2-bb"></a><code class="computeroutput">xoshiro256d</code> public member functions</h3>
<div class="orderedlist"><ol class="orderedlist" type="1">
<li class="listitem"><pre class="literallayout"><span class="identifier">std</span><span class="special">::</span><span class="identifier">uint64_t</span> <a name="doxygen.headers.classboost_1_1random_1_1xoshiro256d_1af87f80dab76fe2ba62fba98d74263322"></a><span class="identifier">next_int</span><span class="special">(</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span></pre></li>
<li class="listitem"><pre class="literallayout"><span class="identifier">result_type</span> <a name="doxygen.headers.classboost_1_1random_1_1xoshiro256d_1a4ac72c89ca55bdf929aa1b7482f463b3"></a><span class="identifier">next</span><span class="special">(</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span></pre></li>
</ol></div>
</div>
<div class="refsect2">
<a name="id-1.3.32.5.6.56.6.4.4"></a><h3>
<a name="id-1_3_32_5_6_57_1_1_4_3-bb"></a><code class="computeroutput">xoshiro256d</code> public static functions</h3>
<div class="orderedlist"><ol class="orderedlist" type="1">
<li class="listitem"><pre class="literallayout"><span class="keyword">static</span> <span class="keyword">constexpr</span> <a name="doxygen.headers.classboost_1_1random_1_1xoshiro256d_1a12e2c65cbbfdf6668f2631123612f909"></a><span class="identifier">min</span><span class="special">(</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span></pre></li>
<li class="listitem"><pre class="literallayout"><span class="keyword">static</span> <span class="keyword">constexpr</span> <a name="doxygen.headers.classboost_1_1random_1_1xoshiro256d_1ac404877bc04f45d40da2d5afbf81dcf2"></a><span class="identifier">max</span><span class="special">(</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span></pre></li>
</ol></div>
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<div class="copyright-footer">Copyright © 2000-2005 Jens Maurer<br>Copyright © 2009, 2010 Steven Watanabe<br>Copyright © 2022-2025 Matt
      Borland<p>
        Distributed under the Boost Software License, Version 1.0. (See accompanying
        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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